LOS ANGELES (AP) — The “Transformers” robots have put their 3D ticket-price advantage to good use.

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Distributor Paramount Pictures estimated Monday that “Transformers: Dark of the Moon” pulled in $116.4 million domestically over the four-day Fourth of July weekend and $181.1 million since opening Tuesday night.

The sci-fi sequel has added $217 million overseas, bringing its worldwide total to nearly $400 million.

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The studio says 60 percent of domestic business came from premium-priced 3D admissions, which cost a few dollars more than 2-D screenings. Overseas, 3D admissions accounted for 70 percent of ticket sales.

That’s a good sign for Hollywood’s 3D business, which had waned as 3D revenues dipped to 50 percent or less of the total for some recent releases.

“Cars 2” slipped steeply in its second weekend with $32.1 million domestically.

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